Home / 71,651.16-98,873.82-39,385.08

Finding the Fourth Proportional to 71,651.16, 98,873.82 and 39,385.08

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Solution

The fourth proportional to 71,651.16, 98,873.82 and 39,385.08 is: 54,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,651.16 : 98,873.82 = 39,385.08 : x
  2. Step 2: Convert to fraction form
    71,651.16/98,873.82 = 39,385.08/x
  3. Step 3: Cross multiply
    71,651.16x = 98,873.82 × 39,385.08
  4. Step 4: Simplify right side
    71,651.16x = 3,894,153,310.61
  5. Step 5: Solve for x
    x = 3,894,153,310.61/71,651.16
  6. Step 6: Final answer
    x = 54,348.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.